math library

Mathematical expression parser, AST models, and evaluation engine.

For example:

final result = parser.parse('1 + 2 * 3');
final value = result.value.eval({});
print(value);  // 7.0

Classes

Application

A function or operator application expression.

Expression

An abstract mathematical expression that can be evaluated.

Value

A literal numeric value expression.

Variable

A named variable expression resolved from a variable map.

Constants

constants → const Map<String, double>

Mathematical constants mapped to their num values.

Properties

functions1 → Map<String, num Function(num x)>

Single-argument mathematical functions mapped to unary evaluation closures.

final

functions2 → Map<String, Function>

Two-argument mathematical functions mapped to binary evaluation closures.

final

parser → Parser<Expression>

A mathematical expression parser supporting arithmetic, functions, and variables.

final